translate([77.8, 239.8, 0]) {
    import("/home/valdor/Downloads/Crossfire_2/C2APMmount.stl");
}

$fn= 30;

difference() {
    union() {
        translate([-24, -19, 0]) cube(size=[48,38,3.175]);
        
        translate([ 15,  15, 3]) cylinder(d = 5, center = true, h = 6);
        translate([-15,  15, 3]) cylinder(d = 5, center = true, h = 6);
        translate([ 15, -15, 3]) cylinder(d = 5, center = true, h = 6);
        translate([-15, -15, 3]) cylinder(d = 5, center = true, h = 6);
    
        
    }
    
    translate([-24, -12, 0]) cube(size=[48.1,24,3.2]);
    
    translate([ 15,  15, 5]) cylinder(d = 3.2, center = true, h = 10);
    translate([-15,  15, 5]) cylinder(d = 3.2, center = true, h = 10);
    translate([ 15, -15, 5]) cylinder(d = 3.2, center = true, h = 10);
    translate([-15, -15, 5]) cylinder(d = 3.2, center = true, h = 10);
}